Improvement in drawing-frames



. T. s. WINN. DRAWING FRAME.

N0.107,146. Patented septllavo.

@tutti States atwtdtliiiw.

THOMAS s. WINN, orl LAWRENCE, MASSACHUSETTS."

Leners Paton N 107,146, dared sqnmber 6. 1870.

IMPROVEMENTIN DRAWING-FRAMES.

The Schedule referred to in thoaegltottm Patent and making part of the same,

To all persons to whom, these presents may come:

Be it known that I, THOMAS S. WINX, of'Lawrence, of the count-y of Essex and State of' Massachusetts, have made a new and useful invention, having reference to the draft-rollers and the. transverse sliver-guides of` drawing-frames, andother spinning machinery; and I ilo-hereby declare the, same'to be fully described, as follows, reference being had to the accompanying dmwing, of whch- Figure 1 is a top view;

Figure 2 a iiont elevation; and

Figure 3 an under-side view of a pair of draft-rollers with my invention applied thereto, the lack-bals and gear for moving the sliver-guides being shown in iig. I1 by dotted lines, and more particularly in Figure 4, which is a top view of them. v

In common drawing-llames the weight for keeping down the top rollerot'draf't-rollers, or pressing it upon the sliver while moving between 'the said pair, is generally applied at the middle or at the ends of the top roller.

The purpose of my invention is to maintain each of' the sliver-guides,throughout its motions, at the same distance as the other from the middle of the top roller, in order that the amount of pressure exerted by such roller on both of' t-he slivers extending through the guides and between the rollers may be alike.

By the common method of' traversing the guides in use prior to my invention, they move simultaneously in one direction, so that, while, one may he approaching the middlel of the top roller, the other will be departing therefrom, but with my invention both guides approach the middle of the top roller at one and the same time, and they must simultaneously depart from it, each, in the meantime, preserving the samev distance as the other from the middle of the top roller.

As the weight or power ior deplessingthe top roller on the'two strands orslivcrs going through the guides and between the drawing-rollexsis applied at the middle, or at each end of' the top roller, it will be observed that, with my improvement, the. leverage or pressure on each sliver will be alike, whereas such will not he the case when the guides are. simultaneously moved in the same direction, for, in the latter case, the leverage will be increasing in one sliver and diminishing on the other, thus producing irregularities oi draft of the sliver or roving, and being productive of other-injurious results, all of which are prevented by my invention.

`frame, and provided with an arm, a, which is ex' tended back from it and pivoted to a connecting-rod 'or bar, O, applied to the crank-pin b of a wormtear,

The gear P engages with a worm or screw, R, carried by a shaft, S, the whole being arranged as repre'- `seuted in the drawing..

On the shaft S being put in revolution, the two guides will be simultaneously moved, they'first being caused to approach and next to recede from eachother, with eqnal velocity.

I do not herein confine my invention to the special mechanism, as described, for effecting the sin'mltaneons movements of the sliver-guides at equal velocit-y and at onetime toward and at the next time away from each other, as any equivalent mechanism may be employed..

Iclaim- In combination 'with the two sliver-guides and the draft-rollers, a mechanism for moving the said guides simultaneously, with equal velocity, so as to canse them to approach toward, and afterward to recede from each other, with reference to. the draftrollers, when the upper is weighted or pressed toward the lower, substantially as explained.

Also, the mechanism or combination heleinbefbre explained, for so moving the two sliver-guides, such consisting of' the two racks, the gears, the 4sectoral gear, the. arm, the connecting-bar, the worm-gear, and the driving-worm or screw, the whole heilig arranged and applied together andA to the guides and the rollerflame, substantially in the manner as hereinbefore set fort-h.

THOMAS S. WINN.

Witnesses z .Amm R. CLARK, GEORGE DRAPER. 

